Book picks similar to
Time and Again by Clifford D. Simak


science-fiction
sci-fi
time-travel
fiction

Schismatrix Plus


Bruce Sterling - 1996
    For the first time in one volume: every word Bruce Sterling has ever written on the Shapers-Mechanists Universe.In the last decade, Sterling has emerged a pioneer of crucial, cutting-edge science fiction. Now Ace Books is proud to offer Sterling's stunning world of the Schismatrix--where Shaper revolutionaries struggle against aristocratic Mechanists for ultimate control of man's destiny. This volume includes the classic full-length novel, Schismatrix, plus thousands of words of mind-bending short fiction.

The Black Cloud


Fred Hoyle - 1957
    Tracks the progress of a giant black cloud that comes towards Earth and sits in front of the sun, causing widespread panic and death. A select group of scientists and astronomers - including the dignified Astronomer Royal, the pipe smoking Dr Marlowe and the maverick, eccentric Professor Kingsly - engage in a mad race to understand and communicate with the cloud, battling against trigger happy politicians.

Battlefield Earth: A Saga of the Year 3000


L. Ron Hubbard - 1982
    Earth has been dominated for 1,000 years by an alien invader—and man is an endangered species. From the handful of surviving humans a courageous leader emerges—Jonnie Goodboy Tyler, who challenges the invincible might of the alien Psychlo empire in a battle of epic scale, danger and intrigue with the fate of the Earth and of the universe in the tenuous balance.

A Darkling Sea


James L. Cambias - 2014
    The Terran explorers have made an uneasy truce with the Sholen, their first extraterrestrial contact: so long as they don’t disturb the Ilmataran habitat, they’re free to conduct their missions in peace.But when Henri Kerlerec, media personality and reckless adventurer, ends up sliced open by curious Ilmatarans, tensions between Terran and Sholen erupt, leading to a diplomatic disaster that threatens to escalate to war.Against the backdrop of deep-sea guerrilla conflict, a new age of human exploration begins as alien cultures collide. Both sides seek the aid of the newly enlightened Ilmatarans. But what this struggle means for the natives—and the future of human exploration—is anything but certain, in A Darkling Sea by James Cambias.

Dinosaur Planet


Anne McCaffrey - 1978
    It was a simple mission. A standard crew.THE PROBLEMKai and his beautiful co-leader Varian, the best xenob-vet in the business, followed all the standard procedures -- but the results of their investigations were totally unexpected. Not only were the planet's creatures larger than anyone had anticipated and the geological finds smaller, but the rescue ship had inexplicably disappeared.THE NIGHTMAREThen suddenly on a world of giant swamp creatures and deadly predators, a curious change had come over many of the members of the ARCT-10 crew... a change that would lead all of them, in one way or another, into the primitive darkness of a future world.

A Fire Upon the Deep


Vernor Vinge - 1992
    A Fire upon the Deep is the big, breakout book that fulfills the promise of Vinge's career to date: a gripping tale of galactic war told on a cosmic scale.Thousands of years hence, many races inhabit a universe where a mind's potential is determined by its location in space, from superintelligent entities in the Transcend, to the limited minds of the Unthinking Depths, where only simple creatures and technology can function. Nobody knows what strange force partitioned space into these "regions of thought," but when the warring Straumli realm use an ancient Transcendent artifact as a weapon, they unwittingly unleash an awesome power that destroys thousands of worlds and enslaves all natural and artificial intelligence.Fleeing the threat, a family of scientists, including two children, are taken captive by the Tines, an alien race with a harsh medieval culture, and used as pawns in a ruthless power struggle. A rescue mission, not entirely composed of humans, must rescue the children-and a secret that may save the rest of interstellar civilization.

Doorways in the Sand


Roger Zelazny - 1976
     Humanity is not alone in the cosmos. The aliens have given a precious relic to the people of Earth: star-stone. But the harmony of the galaxy is endangered when they discover that the star-stone has disappeared. Likeable Fred Cassidy is an eternal undergraduate. All he thinks he knows about the star-stone is that it came to Earth in an interplanetary trade for the Mona Lisa and the British Crown jewels. When Fred is accused of stealing the cosmic artefact, he is pursued from Australia to Greenwich Village and beyond, by telepathic psychologists, extra-terrestrial hoodlums and galactic police in disguise. Follow him on his adventures as he enters multiple realities, flipping in and out of alien perspectives, through doorways in the sand.

Planet of the Apes


Pierre Boulle - 1963
    Lord have pity on us!"With these words, Pierre Boulle hurtles the reader onto the Planet of the Apes. In this simian world, civilization is turned upside down: apes are men and men are apes; apes rule and men run wild; apes think, speak, produce, wear clothes, and men are speechless, naked, exhibited at fairs, used for biological research. On the planet of the apes, man, having reached to apotheosis of his genius, has become inert.To this planet come a journalist and a scientist. The scientist is put into a zoo, the journalist into a laboratory. Only the journalist retains the spiritual strength and creative intelligence to try to save himself, to fight the appalling scourge, to remain a man.Out of this situation, Pierre Boulle has woven a tale as harrowing, bizarre, and meaningful as any in the brilliant roster of this master storyteller. With his customary wit, irony, and disciplined intellect and style, the author of The Bridge Over the River Kwai tells a swiftly moving story dealing with man's conflicts, and takes the reader into a suspenseful and strangely fascinating orbit.

Children of Time


Adrian Tchaikovsky - 2015
    Humanity's last survivors escaped earth's ruins to find a new home. But when they find it, can their desperation overcome its dangers?WHO WILL INHERIT THIS NEW EARTH?The last remnants of the human race left a dying Earth, desperate to find a new home among the stars. Following in the footsteps of their ancestors, they discover the greatest treasure of the past age—a world terraformed and prepared for human life.But all is not right in this new Eden. In the long years since the planet was abandoned, the work of its architects has borne disastrous fruit. The planet is not waiting for them, pristine and unoccupied. New masters have turned it from a refuge into mankind's worst nightmare.Now two civilizations are on a collision course, both testing the boundaries of what they will do to survive. As the fate of humanity hangs in the balance, who are the true heirs of this new Earth?

Emphyrio


Jack Vance - 1969
    In a pirated spaceship, he began his search through the civilizations of the galaxy, hunting the elusive key to the time-shrouded secret that could free his people. Inexorably he moved toward his last desperate hope: the place his ancestors had left many thousands of years before, the mysterious and terrifying planet called Earth.

Bill, The Galactic Hero


Harry Harrison - 1965
    But Bill, a Technical Fertilizer Operator from a planet of farmers, wasn't interested in honor-he was only interested in two things: his chosen career, and the shapely curves of Inga-Maria Calyphigia. Then a recruiting robot shanghaied him with knockout drops, and he came to in deep space, aboard the Empire warship Christine Keeler. And from there, things got even worse.

Nova


Samuel R. Delany - 1968
    the reader observes, recollects, or participates in a range of personal experience including violent pain and disfigurement, sensory deprivation and overload, man-machine communion, the drug experience, the creative experience - and inter-personal relationships which include incest and assassination, father-son, leader-follower, human-pet, and lots more!The balance of galactic power in the 31st century revolves around Illyrion, the most precious energy source in the universe. The varied and exotic crew who sign up with Captain Lorq van Ray know their mission is dangerous, and they soon learn that they are involved in a deadly race with the charismatic but vicious leader of an opposing space federation. But they have no idea of Lorq's secret obsession: to gather Illyrion at the source by flying through the very heart of an imploding star.

Borders of Infinity


Lois McMaster Bujold - 1989
    Contents:Frame story that follows Miles' time on Earth in Brothers in ArmsThe Mountains of Mourning (1989)Labyrinth (1989)The Borders of Infinity (1987)

The Sheep Look Up


John Brunner - 1972
    In this nightmare society, air pollution is so bad that gas masks are commonplace. Infant mortality is up, and everyone seems to suffer from some form of ailment.

Dauntless


Jack Campbell - 2006
    Now its fleet is crippled and stranded in enemy territory. Their only hope is a man who's emerged from a century-long hibernation to find he has been heroically idealized, beyond belief...Captain John "Black Jack" Geary's legendary exploits are known to every schoolchild. Revered for his heroic "last stand" in the early days of the war, he was presumed dead. But a century later, Geary miraculously returns from survival hibernation and reluctantly takes command of the Alliance fleet as it faces annihilation by the Syndics.Appalled by the hero-worship around him, Geary is nevertheless a man who will do his duty. And he knows that bringing the stolen Syndic hypernet key safely home is the Alliance's one chance to win the war. But to do that, Geary will have to live up to the impossibly heroic "Black Jack" legend...